Key legal question
Whether the appellants had standing to challenge the retroactive building permit based on planning-law interests protecting neighbors.
Extracted holding
The appeal was inadmissible to the extent it relied on objections that did not show the appellants were protected by the norms invoked; they acted mainly in the general interest of legality.
Extracted reasoning
A public-law appeal by neighbors requires invocation of rules protecting their own interests, not just the public interest. The appellants failed to show how the setback-line issue or other objections affected their property or interests.